Function create_load_key

authlib/jose/rfc7519/jwt.py:170–191

(key)

def create_load_key(key):
    def load_key(header, payload):
        if isinstance(key, KeySet):
            return key.find_by_kid(header.get("kid"))

        if isinstance(key, dict) and "keys" in key:
            keys = key["keys"]
            kid = header.get("kid")

            if kid is not None:
                # look for the requested key
                for k in keys:
                    if k.get("kid") == kid:
                        return k
            else:
                # use the only key
                if len(keys) == 1:
                    return keys[0]
            raise ValueError("Invalid JSON Web Key Set")
        return key

    return load_key